Stuck on this question! Can someone please help? $2 + 7 x + 3 - 5 x - 1 =?$ $2 + 7x + 3 − 5x − 1 = ""?$ Thanks!

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Answer 1 · 2018-05-04T15:42:25

$4 + 2 x$ $4 + 2x$ is the final expression. Here's why:

$2 + 7 x + 3 - 5 x - 1 = ?$ $2 + 7x + 3 - 5x -1 = ?$

Start by combining like terms in the order that they appear. Let's break them into variables and integers.

Integers first:

$2$ $2$ + $3$ $3$ - $1$ $1$ = $4$ $4$

Then, variables:

$7 x$ $7x$ - $5 x$ $5x$ = $2 x$ $2x$

Now, add what you've combined:

$4 + 2 x$ $4 + 2x$

Answer 2 · 2018-05-04T15:42:47

Assuming that you just want this simplified since there is nothing on the right of the $=$ $=$ sign, the answer is:

$2 x + 4$ $2x + 4$

The easiest way to simplify this problem is to combine like terms. First we'll combine all the $x$ $x$ terms:

$2 + 7 x + 3 x - 5 x - 1 = ?$ $2 + color(red)(7x) + 3 color(white)"x"color(red)( - 5x) - 1 = ?$

$2 + 2 x + 3 - 1$ $2 + color(red)(2x) + 3 -1$

Now combine all of the real numbers:

$2 + 2 x + 3 x - 1$ $color(blue)2 + 2x + color(blue)3 color(white)x color(blue)(-1)$

$2 x + 4$ $2x + color(blue)4$

The simplest form of this problem is $2 x + 4$ $2x + 4$ .

Stuck on this question! Can someone please help? 2+7x+3−5x−1=______?2 + 7x + 3 − 5x − 1 = "______"? Thanks!